From 597a7f5b23f35013068c72519caff7f8595d2dad Mon Sep 17 00:00:00 2001
From: Luca Heltai <luca.heltai@sissa.it>
Date: Tue, 19 Jul 2022 11:39:42 +0200
Subject: [PATCH] Added a fix.

---
 source/grid/tria.cc | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/source/grid/tria.cc b/source/grid/tria.cc
index b100f7c5f7..2f8fa9c9f6 100644
--- a/source/grid/tria.cc
+++ b/source/grid/tria.cc
@@ -13979,10 +13979,19 @@ template <int dim, int spacedim>
 bool
 Triangulation<dim, spacedim>::has_hanging_nodes() const
 {
-  for (unsigned int lvl = 0; lvl < n_global_levels() - 1; ++lvl)
-    if (n_active_cells(lvl) != 0)
-      return true;
-
+  if (anisotropic_refinement == false)
+    {
+      for (unsigned int lvl = 0; lvl < n_global_levels() - 1; ++lvl)
+        if (n_active_cells(lvl) != 0)
+          return true;
+    }
+  else
+    {
+      for (const auto cell : active_cell_iterators())
+        for (const auto i : cell->face_indices())
+          if (cell->face(i)->has_children())
+            return true;
+    }
   return false;
 }
 
-- 
2.39.5